Section 6 - Optional Wireless Transmitter Operation; Introduction; Rf Communication Basics; Basic System Overview - Omega MDS-DTM-RTD Series User Manual

6
Optional Wireless Transmitter Operation
Section 6 – Optional Wireless Transmitter Operation

6.1 Introduction

Compared to a wired connection, a wireless meter provides much simpler
installation. Based on the physical principle of the propagation of radio waves,
certain basic conditions should be observed. The following simple
recommendations are provided to ensure proper installation and correct
operation of your wireless meter.

6.2 RF Communication Basics

Your wireless transmitter sends wireless transmissions to a receiver. The receiver
checks the incoming data for accuracy and processes this data for use by the
measurement software on your PC. Radio signals are electromagnetic waves,
hence the signal becomes weaker the further it travels. While radio waves can
penetrate some solid materials like a wall, they are dampened more than when a
direct line-of-sight between the transmitting and receiving antenna exist.

6.3 Basic System Overview

A basic wireless temperature system is comprised of only two main components;
a signal conditioner with a built-in battery powered 2.4GHz radio transmitter,
and a USB powered 2.4GHz radio receiver.
Installation
When installing your meter it is important to position the unit in such a way as
to optimize the antenna location within what's known as the "Fresnel Zone".
The Fresnel Zone can be thought of as a football-shaped invisible tunnel between
two locations that provides a path for RF signals between your meter and your
receiver.
6-1
TRANSMITTER
ANTENNA
FRESNEL ZONE
Figure 6-1. Fresnel Zone
www.DataSheet.net/
RECEIVER
ANTENNA
Datasheet pdf - http://www.DataSheet4U.co.kr/